Autor: |
Poulter BI; Department of Chemistry, University of Washington, Seattle, Washington 98195, USA., Biasin E; Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States., Nowak SH; SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA., Kroll T; SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA., Alonso-Mori R; LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA., Schoenlein RW; LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA., Govind N; Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States., Sokaras D; SSRL, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA., Khalil M; Department of Chemistry, University of Washington, Seattle, Washington 98195, USA. |
Abstrakt: |
The electronic structure and dynamics of ruthenium complexes are widely studied given their use in catalytic and light-harvesting materials. Here we investigate three model Ru complexes, [Ru III (NH 3 ) 6 ] 3+ , [Ru II (bpy) 3 ] 2+ , and [Ru II (CN) 6 ] 4- , with L 3 -edge 2p3d resonant inelastic X-ray scattering (RIXS) to probe unoccupied 4d valence orbitals and occupied 3d orbitals and to gain insight into the interactions between these levels. The 2p3d RIXS maps contain a higher level of spectral information than the L 3 X-ray absorption near edge structure (XANES). This study provides a direct measure of the 3d spin-orbit splittings of 4.3, 4.0, and 4.1 eV between the 3d 5/2 and 3d 3/2 orbitals of the [Ru III (NH 3 ) 6 ] 3+ , [Ru II (bpy) 3 ] 2+ , and [Ru II (CN) 6 ] 4- complexes, respectively. |